light focusing

  • 81Depth-of-field adapter — A depth of field adapter (often shortened to DOF adapter) is used to achieve shallow depth of field on a video camera whose fixed lens or interchangeable lens selection is limited or economically prohibitive at providing such effect. A DOF… …

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  • 82Photoionization mode — A photoionization mode gives rise to a photoionization pattern, having very specific characteristics in terms of photoionization spatial distribution and density, as well as relative yields of photolytic species. A particular photoionization mode …

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  • 83Lenses for SLR and DSLR cameras — This article is about photographic lenses for single lens reflex film cameras (SLRs) and digital single lens reflex cameras (DSLRs). Furthermore, the emphasis is on modern lenses for 35 mm film SLRs and for DSLRs with sensor sizes less than or… …

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  • 84Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …

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  • 85Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …

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  • 86Lens (anatomy) — Crystalline lens (anatomy) Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens …

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  • 87Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans …

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  • 88Ring imaging Čerenkov detector — A Ring Imaging Čerenkov detector (RICH detector) is a particle detector that can determine the velocity, v , of a charged fundamental particle. This is done by an indirect measurement of the Čerenkov angle, heta c , i.e. the angle between the… …

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  • 89Skandha — Buddhist term pi= khandha sa= स्कन्ध (skandha) zh=五蘊(T) / 五蕴(S) zh Latn=wǔyùn vi=Ngũ uẩn ja=五蘊 bo=ཕུང་པོ་ལྔ་ bo Latn=phung po lnga en=aggregate, mass, heap my=ခန္ဒာငါးပါး my Latn=IPA|kʰà̃ dà ŋá bá khan da nga: ba:In Buddhist phenomenology and… …

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  • 90Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …

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